Emerson-Radio-and-Phonograph-Corp-BA201 电路原理图.pdf

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1、MANUAL OF 1939 MOST POPULAR SERVICE DIAGRAMS Tmersm ISadh 6C6 -1 C5 J C9 25L6 C7 I j J R5 !C8 R8 MODELS BA-199 and BA-201 -1 rl-q|0: 25Z5 A.C. OR DC LNe VIEW LOOKING AT PiNS OF BALLAST TUBE R3, WHICH HAS AN OVERALL voltage drop of 54 V. AT -3AMP VOLTAGE DROP ACROSS PILOT LIGHT IS 4 VOLT& SPEAKER FIE

2、LD - 450 OHMS OUTPUT TRANSFORMER ON SPEAKER :ci3 25Z5 25L6 606 6C6 heater Q CIRCUIT = PILOT. LIGHT SCHEMATIC DIAGRAM 5 TUBE AC - DC RECEIVER *Item number locates the article on the schematic diagram. fThese condensers cannot be supplied separately. tNote: In replacing the dual 16 mf electrolytic con

3、denser, the green lead should be connected to the rectifier. PRODUCTION CHANGES 1. Receivers bearing serial numbers below 1496300, C14 was a 0.0001 mf condenser instead of 0.0002. 2. Receivers bearing serial numbers below 1686100, CIO was a 0.03 mf condenser instead of 0.06. Item Part No. DBSCRIPnON

4、 T1 6AT-422 T2 6AT-423 R1 2VR-219D R2 3CR-294 R3 L66-BG B4 OR-73U R6 HR-42U R6, R7 KR-66U R8 3QR-297 Cl, C2 5AC-376 C3 NNC-199 tC4, CB C6, C8 AC-6 C7 6AC-88 C9 LC-06 CIO LC-64 Cll EEC-132 tC12, C13 4DC-346A C14 li 3 5AC-384 3TS-312 XL-9 6AZ-746 6AZ-746 6AZ-747 4YZ-772 3RZ-619 6AZ-792 6AZ-779A 6AZ-79

5、4 Broadcast antenna coil. Broadcast detector coil. Volume control76,000 ohms, with line switch. 240 ohm, % watt wire-wound resistor. Plug-in ballast tube (Interchangeable with L166-B). 26,000 ohm, 14 watt carbon resistor. 2 megohm, 4 watt carbon resistor. . 600,000 ohm, 4 watt carbon resistor. 110 o

6、hm, V2 watt wire-wound resistor. Two-gang variable condenser. .001 mf, 600 volt tubular condenser. Trimmers, part of variable condenser. .1 mf, 200 volt tubular condenser. .26 mf, 100 volt tubular condenser. .02 mf, 400 volt tubular condenser. .06 mf, 400 volt tubular condenser. (See production chan

7、ge No. 2) . .1 mf, 400 volt tubular condenser. Dual 16 mf, 100 volt dry electrolytic condenser. (See note below.) .0002 mf, 600 volt tubular condenser. (See production change No. 1) 5 dynamic speaker . Pilot light, 6.3 volt, .26 amp., Mazda No. 46. Condenser pulley . Pointer pulley . Dial pointer . Drive cord . Drive cord spring. Dial face . Dial crystal for Model BA-199. Dial crystal for Model BA-201. COMPILED BY M, N, BEITMAN. SUPREME PUBLICATIONS 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN